ISO 302-2015

　　中文名稱：紙漿.卡伯(KAPPA)值的測(cè)定

　　英文名稱：Pulps -- Determination of Kappa number

　　原文名稱：Pulps -- Determination of Kappa number

　　范 圍：ISO 302:2015 specifies a method for the determination of the Kappa number of pulp. The Kappa number is an indication of the lignin content or bleachability of pulp. ISO 302:2015 is applicable to all kinds of chemical pulps and semi-chemical pulps within the Kappa number range 1 to 100. For pulps with a Kappa number exceeding 100, use the chlorine-consumption procedure (ISO 3260) to describe the degree of delignification. To achieve the greatest precision and accuracy, the sample size has to be adjusted so that the consumption of permanganate falls between 20 % and 60 % of the amount added. NOTE There is no general and unambiguous relationship between the Kappa number and the lignin content of pulp. The relationship varies according to the wood species and delignification procedure. All compounds oxidized by KMnO4, not only lignin, will increase the consumption of KMnO4, and thereby increase the Kappa number.[8] If the Kappa number is to be used to derive an index of pulp lignin content, specific relationships will have to be developed for each pulp type.

　　發(fā)布日期：2015-08-01

　　實(shí)施日期：2015-08-01

　　標(biāo)準(zhǔn)組織：國(guó)際標(biāo)準(zhǔn)化組織標(biāo)準(zhǔn)(ISO)

　　ICS分類號(hào)：(85.040)紙漿

　　中國(guó)標(biāo)準(zhǔn)分類號(hào)：(Y30)造紙綜合

　　同一中標(biāo)分類下的其他標(biāo)準(zhǔn)

　　• ASTM D982-2005(2009)紙張紙板中有機(jī)氮的試驗(yàn)方法

　　• ASTM E875-2010造紙業(yè)水基產(chǎn)品用作為防腐劑的真菌抑止劑效力的試驗(yàn)方法

　　• ASTM F767-1998(2008)化學(xué)無(wú)碳紙曝光圖象穩(wěn)定性試驗(yàn)方法

　　• BS 2987-1958紙?jiān)囼?yàn)用統(tǒng)計(jì)學(xué)的注解

　　• BS 3137-1972紙、紙板破裂強(qiáng)度的測(cè)定方法

　　• ASTM D817-1996(2010)測(cè)試醋酸丙酸纖維素和乙酸丁酸纖維素的試驗(yàn)方法

　　• ASTM D817-2012

　　• ASTM D871-1996(R2010)

　　• ASTM D871-1996(2010)測(cè)試醋酸纖維素的試驗(yàn)方法

關(guān)于我們

部分儀器

合作客戶